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发明名称
PERFECTIONNEMENT AUX TUILES CANAL A INTERVERROUILLAGE
摘要
申请公布号
FR2582034(B1)
申请公布日期
1987.07.10
申请号
FR19850007359
申请日期
1985.05.15
申请人
NAULEAU ROGER
发明人
分类号
E04D1/04;(IPC1-7):E04D1/02
主分类号
E04D1/04
代理机构
代理人
主权项
地址
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